11121210012012 has 48 divisors (see below), whose sum is σ = 27476978451552. Its totient is φ = 3488874004480.

The previous prime is 11121210011993. The next prime is 11121210012037. The reversal of 11121210012012 is 21021001212111.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 11121210011982 and 11121210012000.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4392208 + ... + 6444680.

It is an arithmetic number, because the mean of its divisors is an integer number (572437051074).

Almost surely, 2^{11121210012012} is an apocalyptic number.

11121210012012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11121210012012 is an abundant number, since it is smaller than the sum of its proper divisors (16355768439540).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11121210012012 is a wasteful number, since it uses less digits than its factorization.

11121210012012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2079058 (or 2079056 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 11121210012012 its reverse (21021001212111), we get a palindrome (32142211224123).

The spelling of 11121210012012 in words is "eleven trillion, one hundred twenty-one billion, two hundred ten million, twelve thousand, twelve".